CN101028637A - Liquid-expanding formation - Google Patents
Liquid-expanding formation Download PDFInfo
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- CN101028637A CN101028637A CNA2006100339872A CN200610033987A CN101028637A CN 101028637 A CN101028637 A CN 101028637A CN A2006100339872 A CNA2006100339872 A CN A2006100339872A CN 200610033987 A CN200610033987 A CN 200610033987A CN 101028637 A CN101028637 A CN 101028637A
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- metal tube
- sealing column
- bed die
- counterdie
- mold
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Abstract
A liquid expansion shaping technology includes such steps as providing a prefabricated metal pipe, putting it in a die set, sealing both ends of metal pipe, and filling high-pressure liquid into the metal pipe to expand it for shaping.
Description
Technical field
The present invention relates to a kind of shaped by fluid pressure technology.
Background technology
Bloated type is to utilize the pressure prefabricated component that diameter is less to expand from inside to outside to form a kind of processing method of diameter than big or irregular cylindrical spare, mainly contains the bloated type method of punching block, the bloated type method of rubber die, hydraulic expanding type method etc.And the mould structure complexity of the bloated type of punching block, precision is difficult to guarantee; The rubber type that expands is limited by rubber property, and expansive force is inhomogeneous, be easy to generate problem such as defective; Hydraulic expanding type technology is simple, with low cost, and expands evenly, is widely used.Present hydraulic expanding type technology can only to tubular or taper etc. prefabricated component process, and preparation tubular or taper prefabricated component moulding process more complicated, with the tubular prefabricated component is example, generally needs through following step: 1. open material, sheet sheet material is cut to circle; 2. stretch, the raw material that cut are carried out drawing and forming on the oil pressure stretching-machine be tubular, in general need through the ability moulding that repeatedly stretches, and can cause work hardening in the drawing process, if the degree of depth of tube is bigger, repeatedly also needing prefabricated component is carried out annealing in process to prevent drawing crack in the stretch process process so.As seen technology more complicated, especially drawing process, not only operation is loaded down with trivial details, production efficiency is low, and the equipment complexity, the input cost that need are higher; The peristome branch of the tubular prefabricated component after stretching simultaneously produces gauffer, need excise it, causes the waste of material.Tubular after the moulding or taper prefabricated component are packed in the expansion machine, charge into the type liquid that the expands type that expands, because this moment, prefabricated component sealed, the process that in the hydraulic expanding type process, needs exhaust, in order to avoid gas causes the uneven problem of moulding, just need to increase the relevant apparatus and the equipment of exhaust, strengthened cost of investment.
Summary of the invention
The object of the present invention is to provide a kind of hydraulic expansion forming process,, improved production efficiency, also reduced the cost of investment of corollary equipment simultaneously to simplify the prefabricated component moulding process.
The present invention realizes above-mentioned purpose like this:
A kind of hydraulic expansion forming process is characterized in that adopting metal tube as prefabricated component, packs in the mould metal tube and the sealed metal tube two ends, then highly pressurised liquid is charged in the pipe, and metal pipe-wall is subjected to compression swelling at in-mold molding.
In addition, mould comprises mold and the bed die that matches, and the bed die bottom is provided with the counterdie sealing column of extending to mould inside, and counterdie sealing column root is provided with sealing ring; Mold and bed die are provided with the patrix sealing column accordingly, and counterdie sealing column root also is provided with sealing ring; Metal tube is socketed on patrix sealing column and the counterdie sealing column, and sealing ring is with the metal tube closed at both ends; Be provided with infusion hole in the bed die, an end of infusion hole extends to the surface of counterdie sealing column, and the other end extends to the outer surface of bed die and is connected with hydraulic pump.
The invention has the beneficial effects as follows:,, improved production efficiency as long as, can save the loaded down with trivial details technology that traditional handicraft repeatedly stretches and anneals raw material with using after the sheet stock material welding owing to adopt metal tube as moulding prefabricated; And can avoid raw-material waste according to the metal tube moulding of the size of finished product intercepting different length; Corresponding mould of this technology and the equipment that matches are simple, and input cost is low.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples:
Fig. 1 is a die profile of the present invention.
The specific embodiment
A kind of hydraulic expansion forming process adopts metal tube 3 as prefabricated component, packs in the mould metal tube 3 and sealed metal tube 3 two ends, then highly pressurised liquid is charged in the pipe, and metal tube 3 walls are subjected to compression swelling at in-mold molding.Preparation process with the metal teapot is an example, and traditional handicraft earlier is cut into circle with sheet material, and the stretching of carrying out repeatedly with the oil pressure stretching-machine forms the tubular prefabricated component then, owing to material require through excessive deformation, so the problem of drawing crack may appear in the drawing process.Then prefabricated component is fitted into the type that expands in the expansion machine, also will excises then owing to be stretching in the gauffer that nozzle produces.This technology is owing to adopt metal tube 3 as moulding prefabricated, as long as can use after sheet stock material twisted, welds, can save the loaded down with trivial details technology that traditional handicraft repeatedly stretches and anneals raw material, improved production efficiency.And can avoid raw-material waste according to the metal tube moulding of the size of finished product intercepting different length.
Because metal tube 3 is both ends opens, traditional liquid is expanded into the pattern tool and is not suitable for this technology, so the present invention has also carried out design improvement at tubular preforms to mould.With reference to Fig. 1, liquid is expanded into the pattern tool, comprises the mold 1 and the bed die 2 that match, and bed die 2 bottoms are provided with the counterdie sealing column 21 of extending to mould inside, and counterdie sealing column 21 roots are provided with sealing ring 22; Mold 1 also is provided with patrix sealing column 11 accordingly, and patrix sealing column 11 roots also are provided with sealing ring 12; Metal tube 3 is socketed on patrix sealing column 11 and the counterdie sealing column 21, and sealing ring 12,22 is with metal tube 3 closed at both ends; Be provided with infusion hole 23 in the bed die 2, an end of infusion hole 23 extends to the surface of counterdie sealing column 21, and the other end extends to the outer surface of bed die 2, is connected with hydraulic pump through inlet opening sealing ring 24 backs.This Mould design is simple, to corollary equipment require lowly, reduce cost of investment, and easy and simple to handle, production efficiency is high, the bloated type finished product rate height of acquisition, quality are good.
This technology of the following detailed description and working process of mould:
(a) metal tube 3 is socketed in outside the counterdie sealing column 21 of bed die 2.
(b) the primer fluid press pump charges into liquid in the metal tube 3 by the infusion hole 23 of bed die 2.Although patrix sealing column 11 with most air in the metal tube 3 are drained after counterdie sealing column 21 contacts, in the space, have a spot of gas unavoidably, influence Forming Quality.Therefore before the mould closure, feed earlier liquid with vomit pipe in gas.
(c) mold 1 descends, and the patrix sealing column 11 in the mold 1 is inserted in the metal tube 3.When patrix sealing column 11 and counterdie sealing column 21 contacted, sealing ring 12,22 was squeezed to produce and is radially expanded, and contact with metal tube 3 inwalls, thereby realized metal tube 3 closed at both ends, could be in pipe the generation high-pressure molding.
(d) hydraulic pump produces highly pressurised liquid, and the infusion hole 23 in bed die 2 enters in the metal tube 3, forces metal tube 3 expansion moldings.
Prefabricated component after the moulding need carry out following process, still be example with the metal teapot,, its bottom lock could need be formed the embryo of teapot because prefabricated component is that the two sides is opened wide behind the type that expands, can adopt the method for welding, the base plate of circle is welded in the prefabricated component bottom get final product.Certainly subsequent handling also has Hu Zui welding, trimming and sanding and polishing etc.
Claims (3)
1. a hydraulic expansion forming process is characterized in that adopting metal tube as prefabricated component, packs in the mould metal tube and the sealed metal tube two ends, then highly pressurised liquid is charged in the pipe, and metal pipe-wall is subjected to compression swelling at in-mold molding.
2. a kind of hydraulic expansion forming process according to claim 1, it is characterized in that mould comprises mold (1) and the bed die (2) that matches, bed die (2) bottom is provided with the counterdie sealing column (21) of extending to mould inside, and counterdie sealing column (21) root is provided with sealing ring (22); Mold (1) also is provided with patrix sealing column (11) accordingly, and patrix sealing column (11) root also is provided with sealing ring (12); Metal tube (3) is socketed on patrix sealing column (11) and the counterdie sealing column (21), and sealing ring (12,22) is with metal tube (3) closed at both ends; Be provided with infusion hole (23) in the bed die (2), an end of infusion hole (23) extends to the surface of counterdie sealing column (21), and the other end extends to the outer surface of bed die (2) and is connected with hydraulic pump.
3. a kind of hydraulic expansion forming process according to claim 2 is characterized in that comprising following processing step:
(a) outside the counterdie sealing column (21) with metal tube (3) socket bed die (1);
(b) the primer fluid press pump charges into liquid in the metal tube (3) by the infusion hole (23) of bed die (1);
(c) mold (2) descends, and the patrix sealing column (11) of mold (2) is inserted in the metal tube (3), and be squeezed is radially expanded sealing ring (12,22) simultaneously, with metal tube (3) closed at both ends;
(d) hydraulic pump produces highly pressurised liquid, makes metal tube (3) expansion molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610033987A CN101028637B (en) | 2006-02-27 | 2006-02-27 | Liquid-expanding formation mould and liquid-expanding formation process using the mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610033987A CN101028637B (en) | 2006-02-27 | 2006-02-27 | Liquid-expanding formation mould and liquid-expanding formation process using the mould |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101028637A true CN101028637A (en) | 2007-09-05 |
| CN101028637B CN101028637B (en) | 2010-05-12 |
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ID=38714293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610033987A Expired - Fee Related CN101028637B (en) | 2006-02-27 | 2006-02-27 | Liquid-expanding formation mould and liquid-expanding formation process using the mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101028637B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101570135A (en) * | 2008-04-29 | 2009-11-04 | 起亚自动车株式会社 | Tail trim assembly of exhaust pipe for vehicle and method of manufacturing the same |
| CN102172811A (en) * | 2010-12-28 | 2011-09-07 | 北京航空航天大学 | Tubular plate-type compound perfusion forming method |
| CN108143267A (en) * | 2016-12-06 | 2018-06-12 | 广东美的生活电器制造有限公司 | The manufacturing method of the liner of liner, heating vessel and heating vessel |
| CN109781326A (en) * | 2019-03-08 | 2019-05-21 | 周焱春 | A kind of metal can pressure checking device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102139305A (en) * | 2010-11-20 | 2011-08-03 | 无锡曙光模具有限公司 | Hydraulic forming mould for stretching pipe fitting at vertical angle |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4557128A (en) * | 1982-01-27 | 1985-12-10 | Costabile John J | Apparatus for producing a bulge in thin metal material |
| US4418556A (en) * | 1982-07-12 | 1983-12-06 | Compagnie Europeenne Du Zirconium Cezus | Precision local expansion shaping process and apparatus for metal tubes of substantial length |
| CN2275486Y (en) * | 1996-09-29 | 1998-03-04 | 江阴市微型喷雾器总厂 | Swell mould for pot making machine |
| CN1199746C (en) * | 2002-05-30 | 2005-05-04 | 佛山市佳能事液压机器制造有限公司 | Expanding method and equipment for implementing said expanding method |
| CN1530189A (en) * | 2003-03-13 | 2004-09-22 | 钰捷工业股份有限公司 | Aluminium-alloy pipe shaping method |
| CN1687618A (en) * | 2005-05-28 | 2005-10-26 | 杜明乾 | Sealing arrangement for pipe expanding machine |
-
2006
- 2006-02-27 CN CN200610033987A patent/CN101028637B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101570135A (en) * | 2008-04-29 | 2009-11-04 | 起亚自动车株式会社 | Tail trim assembly of exhaust pipe for vehicle and method of manufacturing the same |
| US9101971B2 (en) | 2008-04-29 | 2015-08-11 | Kia Motors Corporation | Tail trim assembly of exhaust pipe for vehicle and method of manufacturing the same |
| CN102172811A (en) * | 2010-12-28 | 2011-09-07 | 北京航空航天大学 | Tubular plate-type compound perfusion forming method |
| CN102172811B (en) * | 2010-12-28 | 2013-02-27 | 北京航空航天大学 | Tubular plate-type compound perfusion forming method |
| CN108143267A (en) * | 2016-12-06 | 2018-06-12 | 广东美的生活电器制造有限公司 | The manufacturing method of the liner of liner, heating vessel and heating vessel |
| CN109781326A (en) * | 2019-03-08 | 2019-05-21 | 周焱春 | A kind of metal can pressure checking device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101028637B (en) | 2010-05-12 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20170505 Address after: Xinhui District 529158 Guangdong city of Jiangmen province Luo Keng Zhen Niu Wan Yueshan Industrial Park Patentee after: Jiangmen Lifeng Hardware Industry Co., Ltd. Address before: Xinhui District, Guangdong city of Jiangmen province 529128 Luokeng Yueshan Industrial Park Lifeng Hardware Products Co. Ltd. Patentee before: Liang Xuehua |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20190227 |